<template>
  <div>
    <div class="search">
      <input class="search-input"
             type="text"
             placeholder="输入城市名或拼音"
             v-model="keyword">
    </div>
    <div class="search-content"
         ref="search"
         v-show="keyword">
      <ul>
        <li class="search-item border-bottom"
            v-for="item in list"
            :key="item.id"
            @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom"
            v-show="noList">
          没有找到匹配城市
        </li>
      </ul>
    </div>
  </div>

</template>

<script>
  import Bscroll from 'better-scroll'

  import {mapMutations} from 'vuex'

  export default {
    name: 'Search',
    props: {
      cities: Object
    },
    data(){
      return{
        keyword: '',
        list: [],
        timer: null,
      }
    },
    computed: {
      noList(){
        return !this.list.length
      }
    },
    methods: {
      ...mapMutations(['changCity']),
      handleCityClick(city){
        // alert(city)
        this.changCity(city);
        this.$router.push('/')
      }
    },
    watch: {
      keyword(){
        if(this.timer){
          clearTimeout(this.timer)
        }
        if(!this.keyword){
          this.list = [];
          return
        }
        this.timer = setTimeout(() => {
          const result = [];
          for(let i in this.cities){
            this.cities[i].forEach((item) =>{
              if(item.spell.indexOf(this.keyword) > -1 ||
              item.name.indexOf(this.keyword) > -1){
                result.push(item)
              }
            })
          }
          this.list = result;
          // console.log(result)
        }, 100)
      }
    },
    mounted () {
      this.scroll = new Bscroll(this.$refs.search)
    }
  }
</script>

<style scoped lang="stylus">
  @import "~style/varibles.styl"
.search {
  height: .72rem;
  padding 0  .1rem;
  background $bgColor
}
  .search-input{
    box-sizing border-box
    height .62rem
    line-height .62rem
    width 100%
    border-radius .06rem
    color #666
    padding 0 .1rem
    text-align center

  }
  .search-content{
    z-index 1
    overflow hidden
    position absolute
    top 1.58rem
    left 0
    right 0
    bottom 0
    background #eee
  }
  .search-item{
    line-height .62rem
    padding-left .2rem
    color #666
    background #fff
  }
</style>
